Fits like a glove
As per other reviews the sizing is small, which is nothing unusual for an Italian brand. I bought the blue/yellow version and matching shorts. I also bought the green/yellow camo set. I purchased a PRR Bering jersey last year, which blew me away in terms of quality, so I felt confident buying more Ale. This is now my 'go to' brand, which is awkward because it's quite hard to get hold of in the UK. When Wiggle started to stock a good selection of the Summer gear I filled my boots. The Arcoboleno jersey is beautifully made and fantastically comfortable, ultra-light and wicks moisture better than any other jersey I have owned.
I am 6'2" and 11st 10lbs #apologies to the metric folk# and the XL fits perfectly. In fact, all my Ale gear is XL and I like that consistency. It is a very athletic fit so if you are carrying some lumber you may want to lay off the cake before you invest in this gear.
My only criticism of this jersey is that the pockets are a little shallow. I lost my Speedplay cleat caps somewhere in Suffolk as a result. I keep them in the zip pocket now.
It is quite expensive, but not compared to Castelli, Assos and a few others I could mention. If it stands the test of time, it will be more than worth it. I have wasted money on cheaper brands too many times to count, and I always regret it.
04 August 2016

Excellent (close/race) fit, and feels good quality
Hoping this review is helpful especially to those worried about sizing. Some reviews talk about too small, bad sizing, alright if you don't mind not breathing, etc. but fail to mention the size ordered or the size of the intended rider. So in an attempt to help, my measurements are:
Age: 47 Years
Height: 172 cm ~ 5' 8"
Inside leg: 76 cm ~30"
Waist: 76 cm ~ 30"
Chest: 93 cm ~36.5"
Weight: 66 Kg ~ 10 st 6 lbs
I bought MEDIUM bib shorts and jersey and I would say the fit is absolutely perfect. In fact because I have relatively short legs, I find that some longer/race/laser cut bib shorts are slightly too long and are a little baggy where my quads end and my knee starts. These on the other hand finish a little above the knee (i.e. still on my quad) and so no bagginess. Perfect. Also worth mentioning is the fabric feels great quality, very stretchy and comfortable. I would say for summer only as it is quite thin but feels great on the skin. It is what it is, it's a race fit, race weight product. If that's what you want its great, if you want something more flattering, looser fitting then it isn't for you. Only time will tell if they are well made and built to last.
30 June 2016

Love it
Very comfortable and great quality material but as other have said, you need a larger size. Im usually XL but eventually ended with XXXL...!
21 June 2016

size is much smaller than as shown in reality
as per the review summary above. as per the summary above
16 May 2016

Great - but small!
If you're a large'ish chap, this isn't the top for you.
It looks great, clearly of amazing material but if you're the kind of guy that enjoys breathing then i'd look for something else.
25 April 2016